Diff: main.cpp

Revision:

0:90918a0a0969

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Mar 12 02:49:56 2021 +0000
@@ -0,0 +1,168 @@
+#define mC 2610.626
+#define mD 2930.665
+#define mE 3290.628
+#define mF 3490.228
+#define mG 3910.995
+#define mA 440.000
+#define mB 493.883
+// viollin: 391.995~4186.009
+// viola: 261.626~2093.005
+// cello: 130.813~1046.502
+// contrabass: 82.407~391.995
+// hape: 61.735~6271.927
+ 
+#include "mbed.h"
+#include "math.h"
+ 
+Ticker timer;
+AnalogOut sp1(p18);
+AnalogIn magSensors[] = {p15,p16,p17,p19,p20};
+float ms[180];
+float m1,m2,m3,m4,m5;
+float freq[3] = {0,0,0};
+ 
+void sound_out(void) {
+//    
+    static float j1=0;
+    static float j2=0;
+    static float j3=0;
+    static float j4=0;
+    static float j5=0;
+    j1=j1+m1;
+    j2=j2+m2;
+    j3=j3+m3;
+    j4=j4+m4;
+    j5=j5+m5;
+    if (j1>180)j1=j1-180;
+    if (j2>180)j2=j2-180;
+    if (j3>180)j3=j3-180;
+    if (j4>180)j4=j4-180;
+    if (j5>180)j5=j5-180;
+    sp1.write((ms[(int)j1]+ms[(int)j2]+ms[(int)j3]+ms[(int)j4]+ms[(int)j5])/5.0);
+}
+ 
+int main() {
+    int i;
+    //setting sincurv
+    for (i=0;i<180;i++) {
+        ms[i]=sin(2*3.1415*(float)i/180.0)/2.0+0.5;
+    }
+    timer.attach_us(&sound_out,100); //10kHz
+    while(true){
+//        printf("magSensors: %f, %f, %f\n", magSensors[0]*3.3 * 1054 + 20, magSensors[1]*3.3, magSensors[2]*3.3);
+
+//        m1 = (magSensors[0]*3.3 * 1149.7 + 391.995) *2*180/10000; //606 violin
+//        m2 = (magSensors[1]*3.3 * 554.96 + 261.626) *2*180/10000; //606  2000 viola
+//        m3 = (magSensors[2]*3.3 * 227.48 + 130.813) *2*180/10000; //  cello
+//        m4 = (magSensors[3]*3.3 * 93.815 + 82.407) *2*180/10000; //606  2000
+//        m5 = (magSensors[4]*3.3 * 1881.876 + 61.735) *2*180/10000; //       
+//        
+        m1 = (magSensors[0]*3.3 * 1881.876 + 61.735) *2*180/10000; //       
+        m2 = (magSensors[1]*3.3 * 1881.876 + 61.735) *2*180/10000; //       
+        m3 = (magSensors[2]*3.3 * 1881.876 + 61.735) *2*180/10000; //       
+        m4 = (magSensors[3]*3.3 * 1881.876 + 61.735) *2*180/10000; //       
+        m5 = (magSensors[4]*3.3 * 1881.876 + 61.735) *2*180/10000; //       
+        
+       // m1 = (sqrt(magSensors[0]*3.3) * 3418.598 + 61.735) *2*180/10000; //       
+//        m2 = (sqrt(magSensors[1]*3.3) * 3418.598 + 61.735) *2*180/10000; //       
+//        m3 = (sqrt(magSensors[2]*3.3) * 3418.598 + 61.735) *2*180/10000; //       
+//        m4 = (sqrt(magSensors[3]*3.3) * 3418.598 + 61.735) *2*180/10000; //       
+//        m5 = (sqrt(magSensors[4]*3.3) * 3418.598 + 61.735) *2*180/10000; //       
+//        printf("%f,%f,%f,%f,%f\n",m1,m2,m3,m4,m5);
+        
+        // Error avoid
+        
+        //for(int i = 0; i < 3; i++) {
+//            m[i] = magSensors[i]*3.3*6054+20;
+//       }
+        //
+        wait(0.00001);
+    }
+    ////ceg
+//    m1=mC*2*180/10000;
+//    m2=mE*2*180/10000;
+//    m3=mG*2*180/10000;
+//    wait(1.0f);
+//    //cfa
+//    m1=mC*2*180/10000;
+//    m2=mF*2*180/10000;
+//    m3=mA*2*180/10000;
+//    wait(1.0f);
+//    //ceg
+//    m1=mC*2*180/10000;
+//    m2=mE*2*180/10000;
+//    m3=mG*2*180/10000;
+//    wait(1.0f);
+//    //bdg
+//    m1=mB*180/10000;
+//    m2=mD*2*180/10000;
+//    m3=mG*2*180/10000;
+//    wait(1.0f);
+//    //ceg
+//    m1=mC*2*180/10000;
+//    m2=mE*2*180/10000;
+//    m3=mG*2*180/10000;
+//    wait(1.0f);
+//    timer.detach();
+//    sp1.write(0.0f);
+//    while (1);
+}
+
+//Ticker timer;
+//AnalogOut sp1(p18); //define analog out pin
+//
+//float ms[180];
+//float m1;
+//int counter = 0;
+//
+//void sound_out(void) {
+//    static float j = 0;
+//    j = j + m1;
+//    if(j > 180) j = j - 180;
+//    sp1.write(ms[(int)j]);
+//    counter++;
+//    if(counter > 500000) {
+//        timer.detach();
+//        }
+//}
+//
+//int main() {
+//    float mm[] = {mC,mD,mE,mF,mG,mA,mB};   //sound scale
+//    //setting sinecurv
+//    for(int i = 0; i < 180; i++) {
+//        ms[i] = sin(2*3.1415*(float)i/180.0)/2.0+0.5;
+//    }
+//    
+//    for(int i = 0; i < sizeof(mm); i++) {
+//        m1 = mm[i]*180/100000;
+//        timer.attach_us(&sound_out,10);
+//        counter = 0;
+//        wait(0.5f);
+//    }
+//    
+//    sp1.write(0.0f);
+//    while(true);
+//}
+//
+//
+//DigitalOut sp1(p5);
+//Ticker timer;   //Initialize timer interrupt
+//
+//int oto = 0;
+//
+//void tick(void)
+//{
+//    sp1.write(oto); //Digital Out
+//    oto=!oto;       //switch flag of digital out
+//}
+//
+//int main()
+//{
+//    float mm [] = {mC,mD,mE,mF,mG,mA,mB};   //sound scale
+//    for(int i = 0; i < sizeof(mm); i++) {
+//        timer.attach(&tick,1.0/mm[i]/2.0);
+//        wait(0.5f);
+//    }
+//    timer.detach();
+//    while(true);
+//}